CVE-2021-29650

MEDIUM
5.5
CVSS Score
Published: March 30, 2021 at 08:35 PM UTC
Updated: June 17, 2026 at 03:48 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxFedora

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%

Description

An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.11.11
Affected range stops below 5.11.11, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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